Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

GD • F/SI1 • GIA 6552511433

Certificate GIA 6552511433

Diamond specifications and retailer prices

From $2,649 USD
As of November 6, 2026
Save $3,208 USD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,350 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552511433. Listed at 21 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
F
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552511433
Dimensions7.14 × 5.45 × 3.75 mm
L/W Ratio1.31
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.14 mm5.45 mm1.20 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552511433
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,350 USD|Low: $2,624 USD|High: $6,471 USD|Avg: $3,955 USD|+1.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 7, 2026
Retailer 13$2,649 USD
Retailer 7$2,752 USD
Retailer 5$3,152 USD
Retailer 11$3,213 USD
Retailer 4$3,241 USD
Retailer 14$3,380 USD
Retailer 2$3,634 USD
Retailer 3$3,656 USD
Retailer 8$3,683 USD
Retailer 6$4,048 USD
Retailer 9$4,088 USD
Retailer 10$4,286 USD
Retailer 12$5,857 USD
Queensmith$6,350 USD

27 data points across 14 retailers

21 retailers$2,649 USD to $5,857 USD

A
Cheapest Retailer
-
$2,649 USD
A
Retailer 2
-
$2,752 USD
View
B+
Retailer 3
-
$3,152 USD
View
B+
Retailer 4
-
$3,213 USD
View
B+
Retailer 5
-
$3,241 USD
View
Final sale: no returns
B
Retailer 6
-
$3,380 USD
View
B
Retailer 7
-
$3,381 USD
View
B
Retailer 8
-
$3,567 USD
View
B
Retailer 9
-
$3,634 USD
View
Retailer 10
-
$3,635 USD
View
Price last confirmed 20 days ago
Retailer 11
-
$3,635 USD
View
Price last confirmed 22 days ago
B
Retailer 12
-
$3,656 USD
View
B
Retailer 13
-
$3,683 USD
View
Retailer 14
-
$3,775 USD
View
Price last confirmed 22 days ago
Retailer 15
-
$3,912 USD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$4,088 USD
View
Retailer 17
-
$4,194 USD
View
Price last confirmed 19 days ago
B
Retailer 18
-
$4,286 USD
View
B
Retailer 19
-
$5,857 USD
View
Retailer 20
-
$6,333 USD
View
Price last confirmed 21 days ago
Most Expensive
Queensmith
6552511433 · Oct 28
$6,350 USD
£5,000 GBP
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from $2,649 USDSave up to $3,208 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.20ct Radiant
$2,649 USD